反応式
[F:1][C:2]1[CH:10]=[C:9]2[C:5]([C:6]([NH2:11])=[N:7][NH:8]2)=[CH:4][CH:3]=1.[C:12](N1C=CC=CC1=O)(N1C=CC=CC1=O)=[S:13]>ClCCl>[F:1][C:2]1[CH:10]=[C:9]2[C:5]([C:6]([N:11]=[C:12]=[S:13])=[N:7][NH:8]2)=[CH:4][CH:3]=1参加物
4
反応条件
- 温度
- 50 °C
実験手順
To 6-fluoro-1H-indazol-3-amine (0.32 g, 2.1 mmol) in dichloromethane (15 mL) was added 1,1′-thiocarbonyldipyridin-2(1H)-one (0.53 g, 2.30 mmol). The reaction was stirred at 50° C. for 3 hours. The reaction was cooled to room temperature and the crude product was purified by column chromatography (25% ethyl acetate/hexanes) to afford 6-fluoro-3-isothiocyanato-1H-indazole (0.30 g, 1.53 mmol, 73.0% yield) as a light yellow powder. 1H NMR (500 MHz, DMSO-D6) δ ppm 13.39 (s, 1H), 7.78 (dd, J=8.85, 4.88 Hz, 1H), 7.41 (dd, J=9.31, 1.68 Hz, 1H), 7.14 (td, J=9.16, 1.83 Hz, 1H). MS (LC/MS) R.T.=3.69; [M+H]+=194.07.
後処理
- temperatureThe reaction was cooled to room temperature
- customthe crude product was purified by column chromatography (25% ethyl acetate/hexanes)
出典と根拠
- ORDレコード
- ord-f8cc5d5354a7474095e94719f3f06d9a
- 出典データセット
- uspto-grants-2012_11
- 特許番号
- US08309577B2
関連ノート
読み込み中…